Home / 201,910.95-278,635.82-111,267.63

Finding the Fourth Proportional to 201,910.95, 278,635.82 and 111,267.63

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Solution

The fourth proportional to 201,910.95, 278,635.82 and 111,267.63 is: 153,548.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,910.95 : 278,635.82 = 111,267.63 : x
  2. Step 2: Convert to fraction form
    201,910.95/278,635.82 = 111,267.63/x
  3. Step 3: Cross multiply
    201,910.95x = 278,635.82 × 111,267.63
  4. Step 4: Simplify right side
    201,910.95x = 31,003,146,768.17
  5. Step 5: Solve for x
    x = 31,003,146,768.17/201,910.95
  6. Step 6: Final answer
    x = 153,548.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.